Moments (turning forces) depend on .......
  • force and distance from the pivot
  • force and mass
  • force and weight
  • mass and distance from the pivot
The moment will be increased .......
  • if the force and distance from the pivot are decreased
  • if the force and distance from the pivot are increased
  • if the force is decreased and distance is increased
  • if the force is increased and distance is decreased
Jane weighs 400N. She sits on a see-saw 1.5m from the pivot (center). Calculate the moment caused by Jane.
  • 200Nm
  • 400Nm
  • 600Nm
  • 800Nm
Amir weighs 500N. He sits on a see-saw 200cm from the pivot (center). Calculate the moment caused by Amir.
  • 200Nm
  • 700Nm
  • 1,000Nm
  • 10,000Nm
Two children weigh 300N and 400N, they sit 2m and 3m away from the pivot (center) on the same side of the see-saw. What is their total moment?
  • 1,700Nm
  • 1,800Nm
  • 2,200Nm
  • 3,500Nm
A friend joins the two children (Q5) and sits on the other end of the see-saw. He weighs 600N. How far from the pivot must he sit to balance the see-saw?
  • 2m
  • 2.5m
  • 3m
  • 5m
A spanner is 20cm long. A force of 10N is applied to undo a bolt. What is the moment (turning force)?
  • 2Nm
  • 20Nm
  • 200Nm
  • 2,000Nm
A 40cm spanner is used to produce the same turning force as QWhat force would be needed?
  • Double the force
  • Quarter of the force
  • Half the force
  • The same force
A moment of 50Nm is needed to open a jar. The pliers are 10cm long. What force is needed?
  • 5N
  • 50N
  • 100N
  • 500N
A moment of 80Nm is needed to undo a wheel nut. The spanner is 20cm long. What force is needed?
  • 4N
  • 80N
  • 400N
  • 800N
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